Gael prusmanf



(No Model.) 2 Sheets-Sheet: 1. 0. PRUSMANN.

REGULATOR VALVE.

No. 321,913; Patented Ju'1y 7, 1885..

WITNESSES:

INVENTOR Carl .P-rzZ; mann I Z/MQA Q ATTORNEYS m mun, moYwmnocMI-nzlu, m.

(No Model.) 2 8heets-Sheet 2.

BRUSMAM v REGULATOR VALVE. No. 321,913. Patented July 7,1885

WITNESSES: 1 INVENTOR WW dw Ca rl .Przi; m a 72 72 BY lw TTogn-sys Nrrn STATES arnnr rricn.

cam. rRUsMANN, or BUCKAU, GERMANY, ASSIGNOR TO souarra t BUDENBERG, or SAME PLACE.

REGULATO R-VALV E.

SPECIFICATION forming part of Letters Patent No. 321,913, dated July 7, 1885.

Application tiled May 7, $85. (No model.)

To aZZ whom it may concern:

Be it known that I, CARL PRiisMANN, a citizen of Germany, residing at Buckau, Germany, have invented new and useful Improvements in Regulator-Valves, of which the following is a specification.

This invention relates to regulator-valves, and has for its objects to provide novel throttle and cut-off valves and novel means'for operating and adjusting said valves. These objects I accomplish inthe manner and by the mech anism hereinafter described and claimed, reference being made to the accompanying drawings,illustrating my invention,in which Figure l is a central vertical section of my improved regulator-valve, in which the throttle-valve is operated by suitable connections with the spindle of an ordinary pendulumgovernor. Fig. 2 is a transverse section of the same in the plane 00 a Fig. 1. Fig. 3 is a central vertical section showing the throttlevalve operated by suitable connections with a diaphragm. Fig. 4 is a side elevation, on a larger scale, of the mechanism connecting the spindle with the valve-stem. Fig. 5 is an end view of the same. Fig. 6 is a horizontal section in the plane ovx, Fig. 4.

Similar lettersindicate corresponding parts.

In the drawings, the letter 0 designates the throttle-valve of an annular section, which is provided with a series of ports, 1), arranged around its periphery, and (Z is the cut-off valve, which is arranged concentrically with the throttle-valve c, and it is provided in its lower part with ports 12, corresponding in number and dimensions to those in the throt tie-valve. The cut-oft valve bears closely against a collar, 0, situated on the lower part of the casing of the valves and can be raised or lowered by means of the lever g, to which it is connected by the hollow spindle n,which passes through a suitable stuffing-box, h, secured to the cover of the casing, and is screwed into a socket, t, in the cut-off valve. In order to prevent thelatter from rotating, a 101i gitudinal depression, j, is formed on its exterior surface; which is engaged by a stud, y, secured in the inwardly-projecting portion '5 of the cover. However, any other well-known means may be employed for this purpose.

The throt-tlevalve c is suspended from the frame A by means of a valve-stem, m, which is rotated by mechanism hereinafter more fully described,and which keeps the said valve in one and the same horizontal plane. In order to prevent any leakage of the steam or other fluid, astufling-box, Z, is formed on the top of the hollow spindle n.

In order to rotate the throttle-valve c any well-known mechanism may be used, and in the example shown in' Fig. l I have made use of governor-pendulums p, which are rotated by a pulley, 12, and suitable gears, 19 which impart a reciprocating motion to the sliding collar 11?, the latter being adapted to engage a forked rod, a, to which is secured a spindle, (I, having suitable hearings in the frame A. In order to transmit this reciprocating motion of the spindle a and convert it into a rotary motion of the valve-stem m,l make use of mechanism illustrated more clearly in Figs.4, 5, 6, which consists of a ball-aud-socket joint, B, on the end of the spindle a, carrying a forked rod, 0, which is conuetted to the ball D'secured to or integral with the valvestem m. The forked rod 0 is at liberty to slide longitudinally in its bearings and rotatestherein, and the plane of the fork of the forked rod 0 makes an angle 'of forty-five degrees with the center line of the spindle. It will now appear evident'that, since the spindle a can move only up and down and cannot depart from the plane of the drawings, when the same is moved in either direction by the action of the governor-balls or diaphragm, Figs. 1 and 3, the angle which the fork makes with the spindle will be raised, and conse quently,siuee a line through the points of attachment s 8 must always preserve the same angle with the center line of the fork and rod, said points must move coneentricall y with the ball; hence the spindle will be rotated.

In Fig. 3 the throttlevalve c is operated by connection with a diaphragm, E. The spin dle a, which in this case is free to vibrate in the plane of the drawings, is secured to the weighted lever E attached to the diaphragm and easing.

In Fig. 1 the cutoff valve (1 is shown in its extreme raised position, in which case the ports of the throttle and cut-off valves coincide with each other in the direction of their length,

and when the valve is in the proper position to bring the ports I) b coineident,as best shown in Fig. 8, in their breadtlnthe passage is wide open and the steam or otherflu'id passes uninterrupted through the valve in the direction of the arrows shown in Figs. 1 and 3; but if,owing to an excess of pressure, the throttlevalve be rotated through the actuating mediums shown, the supply will be cut off, and when the valve has moved through its entire range the ports will be completely closed, while the reverse takes place with diminishing pressure.

In order to vary the supply of fluid independently of the throttle-valve cthat is to say, in order to constantly cause the amount of fluid which can pass through the valve to be some fractional part of the maximum amountthe cut-off valve is lowered,as shown in Fig. 8, whereby the above result is produced, while the throttle-valve acts as before in controlling the passage of this fractional fluid. It will be observed that by lowering the cut-off valve sufiieiently the supply of fluid can be entirely cut off. In order to balance the cut-off valve, which, under certain conditions, is subjected to the upward pressure of the fluid, I provide the same with a valve, a, through which the steam can pass into the space 7; above the said throttle-valve and restore the equilibrium of pressure.

It will appear evident that any of the wellknown means for converting the reciprocating motion of one of two parallel shafts into a rotary motion of the other can be applied to the spindle (t and valve-stem m-as, for instance, instead of having the protuberance b integral with the valve-stem, the stem may be provided with screw-threads which are engaged by screw-threads in the protuberance, so that a downward motion of the latter will produce a rotary motion of the former.

\Vhat I claim as new, and desire to secure by Letters Patent, is

1. The combination ofa valve casing, an annular cut-off valve, (Z, in the case, and an annular throttle-valve in the cut-off valve,with a hollow spindle connecting with the cut-off valve and a valve-stem connecting with the throttle-valve and projecting through and beyond the hollow spindle, substantially as described.

2. The combination of a valvecasing and the concentric cut-off and throttle-valves with a hollow spindle connected with the cut-off valve, a valve-stem connecting with the throttle-valve and extending through and beyond the hollow spindle, and mechanism, substantially as described, connected with the hollow spindle and the valve-stem for actuating the valves, substantially as and for the purpose described.

3. The combination of a valveeasing, an annular cut-off valve in the casing, a rotating throttle-valve within the cut-off valvc,a spindle extending from the cut-off valve, and a pivoted lever connected with the spindle for reciprocating the cut-off valve, substantially as described.

4. The combination of a valve-casing, an annular cutoff valve in the casing, an annular throttle-valve within the cut-off valve, a hollow spindle connected with the cut-off valve, a pivoted lever for reciprocating the spindle, avalve-stem connected with the throttle-valve and extending through and beyond the spindle, and mechanism, substantially as described, for rotating the valve-stem and throttle-valve, substantially as described.

5. The combination of a valve-casing, the concentric cut-off and throttle valves, a valvestem connecting with the throttle-valve,a protuberance on the valve-stem, a forked rod pivoted to the protuberance, a spindle loosely connected with the forked rod, and mechanism, substantially as described, for operating the spindle to turn the valve-stem and the throttle-valve, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CARL PRUSMANN.

\Vitnesses:

WILLIAMs 0. Fox, Jons. KRACKE. 

